http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50765
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org |gnu.org | --- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-11-22 10:50:08 UTC --- Created attachment 25879 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25879 gcc47-pr50765-test.patch Fixed by part of my http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=180932 change, in particular vectorizable_type_promotion has been mishandling ncopies > 1 - vect_create_vectorized_promotion_stmts would always grow vec_oprnd[01] vectors if multi_step_cvt, but nothing would truncate them and we'd just replace the first element in those vectors, so for ncopies 2 (in this case) we have one extra element in the vectors to promote. I'll just add the testcase to the testsuite after regtesting it and then close this.